[cc-frame-viewer] Show layers and levels of detail

tools/cc-frame-viewer/src/model/layer_impl.js

Index: tools/cc-frame-viewer/src/model/layer_impl.js
diff --git a/tools/cc-frame-viewer/src/model/layer_impl.js b/tools/cc-frame-viewer/src/model/layer_impl.js
new file mode 100644
index 0000000000000000000000000000000000000000..343cec3fec6d61fe43de31c548d1a86c0f98b3eb
--- /dev/null
+++ b/tools/cc-frame-viewer/src/model/layer_impl.js
@@ -0,0 +1,78 @@
+/* Copyright (c) 2012 The Chromium Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+'use strict';
+
+base.require('model.constants');
+
+base.exportTo('ccfv.model', function() {
+
+  /**
+   * Represents a cc::LayerImpl over the course of its lifetime.
+   *
+   * @constructor
+   */
+  function LayerImplHistory(id) {
+    this.id = id;
+    this.layersBySnapshotNumber = {};
+    this.args = {};
+    this.selected = false;
+  }
+
+  LayerImplHistory.prototype = {
+    get title() {
+      return 'LayerImpl ' + this.id;
+    },
+
+    getOrCreateLayerImplForLTHI: function(lthi) {
+      if (!this.layersBySnapshotNumber[lthi.snapshotNumber])
+        this.layersBySnapshotNumber[lthi.snapshotNumber] = new LayerImpl(this);
+      return this.layersBySnapshotNumber[lthi.snapshotNumber];
+    },
+
+    dumpToSimpleObject: function(obj) {
+      obj.id = this.id;
+      obj.args = this.args;
+    }
+  };
+
+  /**
+   * Represents a cc::LayerImpl at an instant in time.
+   *
+   * @constructor
+   */
+  function LayerImpl(history) {
+    this.history = history;
+    this.args = {}
+  }
+
+  LayerImpl.prototype = {
+    get id() {
+      return this.history.id;
+    },
+
+    get title() {
+      return 'LayerImpl ' + this.id;
+    },
+
+    get selected() {
+      return this.history.selected;
+    },
+
+    set selected(s) {
+      this.history.selected = s;
+    },
+
+    dumpToSimpleObject: function(obj) {
+      obj.history = {};
+      obj.args = this.args;
+    },
+  };
+
+  return {
+    LayerImpl: LayerImpl,
+    LayerImplHistory: LayerImplHistory
+  }
+});
+